| PFJ | Patellofemoral joint |
| TFJ | Tibiofemoral joint |
| FTG | Femoral trochlear groove |
| RP | Retropatella |
| PTOA | Posttraumatic osteoarthritis |
| ACL | Anterior cruciate ligament |
| TNF-α | Tumor necrosis factor-alpha |
| CPM | Continuous passive motion |
| TRE | Treadmill exercise |
| ROM | Range of motion |
| ACLT | Anterior cruciate ligament transection |
| GAG | Glycosaminoglycan |
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